Possible warnings (7)

kernel/printk/printk.c:183:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
include/sound/control.h:222:2: warning: 'speaker_vol' may be used uninitialized in this function [-Wuninitialized]
net/mac80211/mlme.c:1428:3: warning: 'pwr_level_cisco' may be used uninitialized in this function [-Wuninitialized]
drivers/net/wireless/broadcom/b43/phy_n.c:202:21: warning: 'val_addr' may be used uninitialized in this function [-Wuninitialized]
drivers/tty/serial/8250/8250_core.c:255:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized]
fs/nfsd/nfs4xdr.c:1984:9: warning: 'str' may be used uninitialized in this function [-Wuninitialized]
WARNING: modpost: Found 1 section mismatch(es).